Yealink SIP-T2 SERIES Administrator's Manual page 952

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
Source
Source IP Source Port
Device
address
of PC
IP
SIP address
Determined
Server of SIP
by the
Server
destination
IP
device.
IP phone address
of voice of IP
gatewa phone or
y voice
gateway
IP
TR-069 address
Server of TR-069
Server
930
Destination
Destination IP
Device
IP address of IP
phones
IP phones
Destination Port
Protocol Description of destination port
(Listening port)
1~65535 TCP HTTP port (default value: 443)
SIP protocol port, it is used for
1024~65534 UDP/TCP signaling interaction with SIP
server.
RTP protocol port, it is used by
2~65535 UDP destination device to send or
receive audio stream.
TR-069 protocol port, it is used
1024~65535 TCP to communicate with
TR-069server.